To replies since I started typing. Sorry for any potential ninjas.
I disagree with your assessment, because they've also limited our downvote usage, and the limitation is far more strict than the upvote limitations. The current downvote quota is so low that users who approach downvotes like littlewilson has described can only adjust the upvote count on two posts a day. That's 1/5th the amount of upvotes. Suggesting that they have set rules for upvotes that are "as concrete as can be", but are not doing the same for downvotes is, quite simply, ludicrous. Heck, the amount of downvotes won't even allow me to issue them against a user who's particularly aggressive or offensive if said user makes more than 2 posts before a staff member intervenes (which is not uncommon in those situations), which is the method you employ for downvoting.
In addition, I feel we've beaten the downvote issue to death. There have been a multitude of threads that were hijacked by the issue in the past, and the staff have continuously stated that downvotes can be used how each individual user wishes so long as there isn't abuse of the system. People who have abused the system have always been caught, and I can't think of a single time on 17S where such a user got away without some form of punishment or warning.
You're allowed to have your own opinion, but just because you only downvote when you feel a post has offended you or was an attack on a friend does not mean that all downvotes you receive mean the same. Just because I think giving gift cards is lame because it's less useful than money, but also means you couldn't think of a single thing to give the individual, doesn't mean I get upset when others give me gift cards. They might not view it the same way I do.